What is an HVAC Unit?

An HVAC unit is a term used for a centralized heating, ventilation and air conditioning system. An HVAC unit allows for the convenient regulation of the interior temperature and climate of a building. Before the advent of the modern HVAC system, effective interior cooling and heating were often limited to a specific room or portion of a building with localized heating or cooling. An HVAC unit provides interior cooling by drawing warm interior air into the system through a series of air return ducts. The air is then moved over a series of refrigerated coils. As the air moves over the coils, the heat in the air is transferred to the refrigerant in the coils. A fan or blower sends the cooled air back to the interior of the building through a series of ducts. As the cold air is being directed into the building, the heated refrigerant is directed to a unit outside of the building. Here the heated refrigerant flows through a series of coils over a cooling fan. The cooling fan helps to dissip ... more

An HVAC unit is a term used for a centralized heating, ventilation and air conditioning system. An HVAC unit allows for the convenient regulation of the interior temperature and climate of a building. Before the advent of the modern HVAC system, effective interior cooling and heating were often limited to a specific room or portion of a building with localized heating or cooling. ... more